Prosecution Insights
Last updated: August 06, 2026
Application No. 18/126,378

OFFSHORE ELECTRICAL CHARGING SYSTEM WITH INTEGRATED FLYWHEELS

Final Rejection §103
Filed
Mar 24, 2023
Priority
Mar 24, 2022 — provisional 63/323,482
Examiner
BERHANU, SAMUEL
Art Unit
2859
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Spinning Reserve LLC
OA Round
2 (Final)
73%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
776 granted / 1061 resolved
+5.1% vs TC avg
Moderate +14% lift
Without
With
+14.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
35 currently pending
Career history
1084
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
61.1%
+21.1% vs TC avg
§102
18.9%
-21.1% vs TC avg
§112
12.9%
-27.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1061 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1, 2, 5 and 10 are rejected under 35 U.S.C. 103 as being unpatentable over Mikalsen (US 2022/0396338) in view of Tanaka (US 6,172,435). As to claim 1, Mikalsen discloses in figures 1-5, an offshore electrical charging system, comprising: a marine vessel [see figure 2, element 200; see ¶0017] including at least one propulsion system and electrical equipment for controlling operation of the marine vessel [noted that the vessel contains propulsion and electrical elements; thrusters (206a-206n) contains propulsion and electrical equipment (210a-210n) ; see also Abstract, ¶0017]; a plurality of flywheels [flywheels (201); see ¶0005-006, 3 ¶0017] stored on the marine vessel; an electrical power network [power plans, or electrical generators are disclosed; see ¶0017], ¶0032] on the marine vessel, and electrically connected to flywheels, the electrical power network including electrical conductors and electrical switches arranged as an onboard electrical grid of the marine vessel in electrical communication with the at least one propulsion system and electrical equipment [see ¶0017, ¶0019-0020]; an electrical connector in electrical communication with the at least one of the electrical switches and electrical conductors of the electrical power network to enable electrical power from the flywheels to flow via the electrical connector to supply power [see ¶0017-0019, ¶0027 and figure 5]. at least one power switch disposed on the electrical power network, and configured to enable electricity to flow between the electrical connector and flywheels by selectively connecting and disconnecting one or more flywheels from the onboard electrical grid to supply electrical power to the at least one propulsion system and electrical equipment [the controller control the power switches in order to allow current flows from the flywheels to the electrical equipment ; see also ¶0020, 0023]; and a controller configured to control the at least one power switch to enable and disable electrical power to flow between the flywheels and the electrical connector via the electrical power network [controller is disclosed to control the network and the power flow of the flywheels; see ¶0018-0019] . Mikalsen does not disclose explicitly, supply power from the marine vessel to an exonal load. Tanaka discloses in figure 1, using power from the flywheels to the different electrical system and power plants [the vessel flywheels provide power to the external load; see Col. 4, lines 44-46]. It would have been obvious to one ordinary skill in the art before the effective filling date of the claimed invention was made to use flywheels of Mikalsen’s to power external loas as taught by Tanaka’s in order to provide to outside loads when outside power is not available. As to claim 2, Mikalsen in combination with Tanaka discloses, a charging buoy configured to be moored and to supply electrical power via one or more first electrical conductors engaged therewith; and at least one second electrical conductor electrically connected to the one or more first electrical conductors, and each of the at least one second electrical conductors configured to be connected to the electrical connector, such that when electrical power flows via the one or more first electrical conductors to the at least one second electrical conductor, electricity is able to be supplied by the electrical power network to an electrical system external from the marine vessel. As to claim 5, Mikalsen discloses in figures 1-5, discloses a ligating power station including at least one of a wind turbine and solar panel [wind turbine (104); see also ¶0014-0015]] electrically connected to an electrical conductor that connects to the electrical power network for recharging the flywheels [power line provided to the marine vessels from the wind turbine]. As to claim 10, Mikalsen discloses in figures 1-10. the electrical connector is an inductive electrical connector [see ¶114]. Claims 3 and 4 are rejected under 35 U.S.C. 103 as being unpatentable over Mikalsen in view of Tanaka, and in view of Mikalsen (US 2020/0406765 A1) ,hereinafter 765’. Regarding claim 3, Mikalsen discloses all of the claim limitations except, one or more electrical power meters configured to measure electrical power distributed to B second marine vessel electrically connected to the one or more first electrical conductors: and a processor configured to receive data from the one and more electrical power meters to determine an amount of power delivered to the second marine vessel to determine amount to invoice an owner or operator of the second marine vessel for recharging services. 765’ discloses in figures 1-13, a marine vessel charging system with one or more electrical power meters configured to measure electrical power distributed to B second marine vessel electrically connected to the one or more first electrical conductors [charging station 504 comprises electronic devices that record the amount of power transfer, see ¶036]: and a processor configured to receive data from the one and more electrical power meters to determine an amount of power delivered to the second marine vessel to determine amount to invoice an owner or operator of the second marine vessel for recharging services [charging station 504 comprises processors to process data regarding the amount of power consumed to generate invoices, ¶00 36]. It would have been obvious to a person having ordinary skill in the art at the time the invention was made to modify the system of Mikalsen by using one or more electrical power meters configured to measure electrical power distributed to a second marine vessel electrically connected to the one or more first electrical conductors; and a processor configured to receive data from the one and more electrical power meters to determine an amount of power delivered to the second marine vessel to determine amount to invoice an owner or operator of the second marine vessel for recharging services as disclosed by 675’ in order to perform proper billing. As to claim 4, Mikalsen discloses all of the claim limitations except, at least one timer configured to measure an amount of time that a second marine vessel is electrically connected to the one or more first electrical conductors: and a processor configured to receive date from at least one timer to determine an amount of time that the second marine vessel is electrically connected to the electrical power network, and to determine amount to invoice and owner or operator of the second marine vessel for recharging services. 675’ discloses in figures 1-13, a marine vessel charging system with at least one timer configured to measure an amount of time that a second marine vessel is electrically connected to the one or more first electrical conductors [charging station 504 comprises electronic devices that record the time a vessel is connected to the charging station, e.g. 6 hours, ¶036); and a processor configured to receive data from at least one timer to determine an amount of time that the second marine vessel is electrically connected to the electrical power network, and to determine amount to invoice an owner or operator of the second marine vessel for recharging services [charging station 504 comprises processors to process data regarding the amount of power consumed to generate invoices, ¶0036]. It would have been obvious to one of ordinary skill in the art at the time of the invention to modify the system of Mikalsen by using at least one timer configured to measure an amount of time that a second marine vessel is electrically connected to the one or more first electrical conductors; and a processor configured to receive data from at least one timer to determine an amount of time that the second marine vessel is electrically connected to the electrical power network, and to determine amount to Invoice and owner or operator of the second marine vessel for recharging services as disclosed by 675’ in order to perform proper billing. Claims 6-8, 11 and 13 are rejected under 35 U.S.C. 103 as being unpatentable over Mikalsen in view of Tanaka, and in view of Colello et al. (US 2011/0282807), hereinafter Colello. As to claim 6, Colello discloses in figures 1-18, second marine vessel including the same electrical power components as the marine vessel [two energy stores 104(3) and 104(4), each transported by a marine vessel are used to continually supply to consumer 106, Fig. 2, see also ¶0 95]. It would have been obvious to one ordinary skill in the art before the effective filling date of the claimed invention was made to use plurality of vessel in Mikalsesen’s apparatus as taught by Colello in order to have more vessels as means of transportations. It would have been obvious to one having ordinary skill in the art at the time of the invention was made to use plurality of vessels in order to have plural means of transportation, since it has been held that mere duplication of the essential working parts of a device involves only routine skill in the art. St. Regis Paper Co. v. Bemis Co., 193 USPQ 8. As to claim 7, Colello discloses in figures 1-18, a computing system configured to: remotely monitor available charge of the flywheels on the marine vessel and second marine vessel [controller/EMC 310 communicates with energy stores to monitor their charge, ¶0094]; and determine when to dispatch the second marine vessel with charged flywheels to replace the marine vessel with charge-depleted flywheels [controller/EMC 310 determines the timing of replacing energy stores to ensure uninterrupted supply of energy, ¶0095]. As to claim 8, Colello discloses in figures 1-18, the marine vessel and second marine vessel are autonomous marine vessels or moved by autonomous marine vessels [transport ship 900 is automated and transports energy under computer control, ¶122]. As to claim 11, Colello discloses in figures 1-18, the marine vessel is a barge [energy store 104 can be transported by watercraft such as a ship or barge, see ¶085]. As to claim 13, Mikalsen discloses in figures 1-5, a second electrical connector configured to enable electricity to flow from the electrical connector and second electrical connector [see ¶0018 ]. Claims 9 and 12 are rejected under 35 U.S.C. 103 as being unpatentable over Mikalsen in view of Tanaka, and in view of Colello, and in view of Lorang (US 2012/0060741). As to claim 9, neither Mikalsen nor Tanaka discloses, an electrical power network located offshore to enable one of more marine vessels to electrically connect thereto to receive electrical power therefrom; a plurality of first electrical conductors electrically connected to the electrical power network; a controller configured to (II) cause electrical power to flow from the flywheels of the marine vessel to the electrical power network without disrupting available electrical power being supplied by the electrical power network. Colello discloses in figures 1-18, an electrical power network located offshore to enable one of more marine vessels to electrically connect thereto to receive electrical power therefrom [energy transport ship 900 may receive power from an offshore wind farm which allows the ship to connect thereto in order to receive electrical energy. Fig. 18, ¶146]; a plurality of first electrical conductors electrically connected to the electrical power network [power connector 1808 of the offshore wind platform may allow for connection of more than one ship 900 at B time, Fig. 18, ¶146]; a controller configured to (II) cause electrical power to flow from the flywheels of the marine vessel to the electrical power network without disrupting available electrical power being supplied by the electrical power network [controller/EMC 302 ensures an appropriate number of energy stores 104 in order to maintain, i.e. avoid disruption of, the power network, ¶0091]. Mikalsen, Tanaka , and Colello do not disclose explicitly, a controller configured to (i) enable the marine vessel and second marine vessel to connect. Lorang discloses a system in which a marine vessel comprises a controller configured to (i) enable a marine vessel and a second marine vessel to connect [secondary ship 2 is autonomously controlled and electrically connected to primary ship 1 to provide electrical power to primary ship 1, see ¶0027-0029]. It would have been obvious to a person having ordinary skill in the art at the time the invention was made to modify the system of Mikalsen and Colello by including a controller configured to (I) enable a marine vessel and a second marine vessel to connect as disclosed by Lorang in order to simplify maintenance and reloading operations for the charging system. As to claim 12, Colello discloses in figures 1-18, a charging buoy positioned offshores [power connector 2508 is a buoy and is tethered offshore, Fig 25, ¶159]. Mikalsen, Tanaka and Colello do not disclose explicitly, towboats configured to move the barges. Lorang discloses a system in which a marine vessel comprising towboats configured to move the barge [secondary ship 2 moves by means of one or more towboats, ¶029]. It would have been obvious to a person having ordinary skill in the art at the time the invention was made to modify the system of Mikalsen and Colello by using towboats configured to move the barge as disclosed by Lorang in order to simplify maintenance and reloading operations for the charging system. Response to Arguments Applicant’s arguments with respect to claims have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMUEL BERHANU whose telephone number is (571)272-8430. The examiner can normally be reached M_F. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Julian A. Huffman can be reached at Julian.Huffman@uspto.gov. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SAMUEL BERHANU/Primary Examiner, Art Unit 2859
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Prosecution Timeline

Mar 24, 2023
Application Filed
Jan 06, 2026
Non-Final Rejection mailed — §103
Jun 08, 2026
Response Filed
Jul 24, 2026
Final Rejection mailed — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
73%
Grant Probability
88%
With Interview (+14.4%)
3y 0m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1061 resolved cases by this examiner. Grant probability derived from career allowance rate.

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